Here you can find the source of isConstraintViolation(SQLException e)
public static boolean isConstraintViolation(SQLException e)
//package com.java2s; /**//from w w w .ja v a 2 s.c o m * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * * @author Upendra Jariya * @sponsor Douglas Johnson * @copyright datasync.tools * @version 1.0 * @since 20-Nov-2014 */ import java.sql.SQLException; public class Main { public static boolean isConstraintViolation(SQLException e) { return e.getSQLState().startsWith("23"); } }